/**
 * Created on May 6, 2008
 *
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License only.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA 
 */

package com.aelitis.azureus.ui.selectedcontent;

import org.gudy.azureus2.core3.download.DownloadManager;
import org.gudy.azureus2.core3.global.GlobalManager;
import org.gudy.azureus2.core3.torrent.TOTorrent;
import org.gudy.azureus2.core3.util.Base32;
import org.gudy.azureus2.core3.util.HashWrapper;

import com.aelitis.azureus.core.AzureusCoreFactory;

/**
 * Represents a piece of content (torrent) that is selected
 * 
 * @author TuxPaper
 * @created May 6, 2008
 * 
 */
public class SelectedContent implements ISelectedContent {
    private String hash;

    private DownloadManager dm;
    private int file_index = -1;
    private TOTorrent torrent;

    private String displayName;

    private DownloadUrlInfo downloadInfo;

    // add more fields and you need to amend sameAs below

    /**
     * @param dm2
     * @throws Exception
     */
    public SelectedContent(DownloadManager dm) {
        setDownloadManager(dm);
    }

    public SelectedContent(DownloadManager dm, int _file_index) {
        setDownloadManager(dm);
        file_index = _file_index;
    }

    /**
	 * 
	 */
    public SelectedContent(String hash, String displayName) {
        this.hash = hash;
        this.displayName = displayName;
    }

    public SelectedContent() {
    }

    // @see com.aelitis.azureus.ui.selectedcontent.ISelectedContent#getHash()
    public String getHash() {
        return hash;
    }

    // @see com.aelitis.azureus.ui.selectedcontent.ISelectedContent#setHash(java.lang.String)
    public void setHash(String hash) {
        this.hash = hash;
    }

    // @see com.aelitis.azureus.ui.selectedcontent.ISelectedContent#getDM()
    public DownloadManager getDownloadManager() {
        if (dm == null && hash != null) {
            try {
                GlobalManager gm = AzureusCoreFactory.getSingleton().getGlobalManager();
                return gm.getDownloadManager(new HashWrapper(Base32.decode(hash)));
            } catch (Exception ignore) {

            }
        }
        return dm;
    }

    // @see com.aelitis.azureus.ui.selectedcontent.ISelectedContent#setDM(org.gudy.azureus2.core3.download.DownloadManager)
    public void setDownloadManager(DownloadManager _dm) {
        dm = _dm;
        if (dm != null) {
            setTorrent(dm.getTorrent());
            setDisplayName(dm.getDisplayName());
        }
    }

    public int getFileIndex() {
        return file_index;
    }

    public TOTorrent getTorrent() {
        return (torrent);
    }

    public void setTorrent(TOTorrent _torrent) {
        torrent = _torrent;

        if (torrent != null) {
            try {
                hash = torrent.getHashWrapper().toBase32String();
            } catch (Exception e) {
                hash = null;
            }
        }
    }

    // @see com.aelitis.azureus.ui.selectedcontent.ISelectedContent#getDisplayName()
    public String getDisplayName() {
        return displayName;
    }

    // @see com.aelitis.azureus.ui.selectedcontent.ISelectedContent#setDisplayName(java.lang.String)
    public void setDisplayName(String displayName) {
        this.displayName = displayName;
    }

    // @see com.aelitis.azureus.ui.selectedcontent.ISelectedContent#getDownloadInfo()
    public DownloadUrlInfo getDownloadInfo() {
        return downloadInfo;
    }

    // @see
    // com.aelitis.azureus.ui.selectedcontent.ISelectedContent#setDownloadInfo(com.aelitis.azureus.ui.selectedcontent.SelectedContentDownloadInfo)
    public void setDownloadInfo(DownloadUrlInfo info) {
        this.downloadInfo = info;
    }

    public boolean sameAs(ISelectedContent _other) {
        if (_other instanceof SelectedContent) {

            SelectedContent other = (SelectedContent) _other;

            if (hash != other.hash) {

                if (hash == null || other.hash == null || !hash.equals(other.hash)) {

                    return (false);
                }
            }

            if (dm != other.dm || torrent != other.torrent || file_index != other.file_index) {

                return (false);
            }

            if (displayName != other.displayName) {

                if (displayName == null || other.displayName == null || !displayName.equals(other.displayName)) {

                    return (false);
                }
            }

            if (downloadInfo != other.downloadInfo) {

                if (downloadInfo == null || other.downloadInfo == null || !downloadInfo.sameAs(other.downloadInfo)) {

                    return (false);
                }
            }

            return (true);
        }

        return (false);
    }
}
